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Issue 7, 2007
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Exploring the potential of europium(iii) luminescence for the detection of phase transitions in ionic liquid crystals

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Abstract

The ionic liquid crystal [C12-mim]Cl has been doped with 5 mol% europium nitrate and the photophysical properties of both the ionic liquid and the trivalent europium ion have been monitored with respect to temperature in the range of −48 to +120 °C. The relative transition probabilities to the various ligand-field sub-levels are sensitive to the phase transitions, but the other photophysical parameters, lifetimes and overall intensities of the transitions to Eu(7F2) and Eu(7F4), display monotonous variation with temperature.

Graphical abstract: Exploring the potential of europium(iii) luminescence for the detection of phase transitions in ionic liquid crystals

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Article information


Submitted
26 Sep 2006
Accepted
10 Nov 2006
First published
24 Nov 2006

J. Mater. Chem., 2007,17, 654-657
Article type
Paper

Exploring the potential of europium(III) luminescence for the detection of phase transitions in ionic liquid crystals

J. Kocher, F. Gumy, A. Chauvin and J. G. Bünzli, J. Mater. Chem., 2007, 17, 654
DOI: 10.1039/B614036J

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